Bieber and his pet monkey who was seized by customs last week (Picture: Xposure photos)

Justin Bieber has been slammed for treating his ‘traumatised’ and abandoned baby monkey like an accessory.

German authorities showered the singer with criticism after warning him he has four weeks to collect his 14 week-old Capuchin monkey called Mally.

The chimp was taken into quarantine after it was confiscated last week when the star touched down in Munich with the animal on his private jet without the correct customs documents.

‘I can confirm that the monkey is 14 weeks old and was apparently taken away from its mother when it was between nine and 10 weeks old. This is much too earl’ a spokesperson at the shelter housing the monkey said.

‘He is clearly traumatised at being taken away from his family group.’

Capuchin monkey ‘Mally” sits on the head of an employee in an animal shelter in Munich, Germany (AP)

Austrian vet Kurt Grabenwoeger also rounded on the star for not treating his pet properly, adding: ‘They are living creatures – not celebrity accessories like a handbag. Imagine a human baby sent off on a world tour at 10 weeks – would anyone allow that?’

Several zoos are said to be prepared to give Mally a home if Bieber leaves the monkey behind for good.